Please help mums! I am having trouble with my 14 years old daughter. She acts miserable and down all the time. She keeps flipping out on her 11 years old sister all the time. She doesn't talk to me and because I am a single mum I have hard time dealing with all the parenting myself and it really drains me taking a toll on me as I have so many other things to do. I don't know what to do anymore, please help!!